CATRINA DERBY LPC
NPI 1427726728
Counselor - Professional in Waterbury, CT

NPI Status: Active since September 01, 2021

Contact Information

30 HOLMES AVE
WATERBURY, CT
ZIP 06710
Phone: (203) 755-2868

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  • Individual
  • Female
  • Counselor
  • Professional

About CATRINA DERBY

This page provides the complete NPI Profile along with additional information for Catrina Derby, a provider established in Waterbury, Connecticut with a medical specialization in Counselor, focusing in professional . The healthcare provider is registered in the NPI registry with number 1427726728 assigned on September 2021. The practitioner's primary taxonomy code is 101YP2500X with license number 7490 (CT). The provider is registered as an individual and her NPI record was last updated one year ago.

NPI
1427726728
Provider Name
CATRINA DERBY LPC
Gender
Female
Entity Type
Individual
Location Address
30 HOLMES AVE WATERBURY, CT 06710
Location Phone
(203) 755-2868
Mailing Address
132 E LAKE ST WINSTED, CT 06098
Mailing Phone
(914) 708-0608
Is Sole Proprietor?
No
Enumeration Date
09-01-2021
Last Update Date
05-06-2025
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Specialty - Primary Taxonomy

The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.

Classification

Counselor Professional

Taxonomy Code
101YP2500X
Type
Behavioral Health & Social Service Providers
License No.
7490
License State
CT

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NPI NPI Number Validation

How NPI Validation Works

The NPI validation process uses the ISO-standard Luhn algorithm, a mathematical "handshake", to ensure that a provider's 10-digit ID is authentic and free of common typing errors.

To verify the NPI 1427726728, we treat the final digit (8) as the Check Digit—the target answer we need to reach. The process begins by taking the first nine digits and adding a constant value of 24, which accounts for the "80840" prefix required for all U.S. health identifiers. We then double every other digit starting from the right and sum the individual digits of those results together. For this specific NPI, that total comes to 62. The final step is to find the difference between that total and the next multiple of ten (70 - 62 = 8).

Digit-by-digit view

Use the first nine digits for the calculation. Starting from the right, double every other digit. The last digit is the check digit and is not part of the calculation.

Pos 1
1
Doubled → 2
Pos 2
4
Unchanged
Pos 3
2
Doubled → 4
Pos 4
7
Unchanged
Pos 5
7
Doubled → 14 → 1 + 4
Pos 6
2
Unchanged
Pos 7
6
Doubled → 12 → 1 + 2
Pos 8
7
Unchanged
Pos 9
2
Doubled → 4
Check
8
Target digit
Regular digit Doubled digit Check digit

Step 1: Double every other digit from the right

Starting with the rightmost digit of the first nine digits, double every other value. If doubling creates a two-digit number, add those digits together.

1 → 2 2 → 4 7 → 14 → 5 6 → 12 → 3 2 → 4

Step 2: Add all digits plus the NPI constant

Add the transformed values, the unchanged digits, and the constant 24.

2 + 4 + 4 + 7 + 1 + 4 + 2 + 1 + 2 + 7 + 4 + 24 = 62

Step 3: Find the amount needed to reach the next multiple of 10

The next multiple of ten after 62 is 70. The difference is the calculated check digit.

70 - 62 = 8
This NPI is valid
The calculated check digit is 8, which matches the last digit of 1427726728.

Other Providers at the Same Location


The following 8 providers are registered at the same or a nearby location.

Nurse Practitioner (Psychiatric/Mental Health)
30 HOLMES AVE
WATERBURY, CT 06710
Social Worker (Clinical)
30 HOLMES AVE
WATERBURY, CT 06710
Social Worker (Clinical)
30 HOLMES AVE
WATERBURY, CT 06710
Social Worker (Clinical)
30 HOLMES AVE
WATERBURY, CT 06710
Counselor (Mental Health)
30 HOLMES AVE
WATERBURY, CT 06710
Social Worker
30 HOLMES AVE
WATERBURY, CT 06710
Social Worker
30 HOLMES AVE
WATERBURY, CT 06710
Social Worker
30 HOLMES AVE
WATERBURY, CT 06710

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1427726728, enumerated as an "individual" on September 01, 2021.

The provider is located at 30 HOLMES AVE WATERBURY, CT 06710 and the phone number is (203) 755-2868.

Counselor with taxonomy code 101YP2500X and a focus in Professional.